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Problems with current rawhide



Hi,

I see three problems on x86-64.
These two are on boot, kernel-2.6.17-1.2505.fc6:

...
=============================================
[ INFO: possible recursive locking detected ]
---------------------------------------------
vol_id/973 is trying to acquire lock:
(&md->io_lock){----}, at: [<ffffffff880c8653>] dm_request+0x25/0x130 [dm_mod]

but task is already holding lock:
(&md->io_lock){----}, at: [<ffffffff880c8653>] dm_request+0x25/0x130 [dm_mod]

other info that might help us debug this:
1 lock held by vol_id/973:
#0: (&md->io_lock){----}, at: [<ffffffff880c8653>] dm_request+0x25/0x130 [dm_mod]

stack backtrace:

Call Trace:
[<ffffffff8026e7fd>] show_trace+0xae/0x30e
[<ffffffff8026ea72>] dump_stack+0x15/0x17
[<ffffffff802a7fa3>] __lock_acquire+0x135/0xa54
[<ffffffff802a8e63>] lock_acquire+0x4b/0x69
[<ffffffff802a599c>] down_read+0x3e/0x4a
[<ffffffff880c8653>] :dm_mod:dm_request+0x25/0x130
[<ffffffff8021cfb3>] generic_make_request+0x21a/0x235
[<ffffffff880c7401>] :dm_mod:__map_bio+0xca/0x104
[<ffffffff880c7e47>] :dm_mod:__split_bio+0x16a/0x36b
[<ffffffff880c874b>] :dm_mod:dm_request+0x11d/0x130
[<ffffffff8021cfb3>] generic_make_request+0x21a/0x235
[<ffffffff80235f5c>] submit_bio+0xcc/0xd5
[<ffffffff8021b409>] submit_bh+0x100/0x124
[<ffffffff802e0b35>] block_read_full_page+0x283/0x2a1
[<ffffffff802e31db>] blkdev_readpage+0x13/0x15
[<ffffffff80213617>] __do_page_cache_readahead+0x17b/0x1fc
[<ffffffff80234ecf>] blockable_page_cache_readahead+0x5f/0xc1
[<ffffffff8021480e>] page_cache_readahead+0x146/0x1bb
[<ffffffff8020c329>] do_generic_mapping_read+0x157/0x4b4
[<ffffffff8020c7e0>] __generic_file_aio_read+0x15a/0x1b0
[<ffffffff802c7659>] generic_file_read+0xc6/0xe0
[<ffffffff8020b615>] vfs_read+0xcc/0x172
[<ffffffff80212248>] sys_read+0x47/0x6f
[<ffffffff8026048e>] system_call+0x7e/0x83
DWARF2 unwinder stuck at system_call+0x7e/0x83
Leftover inexact backtrace:

sd 3:0:0:0: Attached scsi generic sg0 type 0
hdd: ATAPI 40X DVD-ROM DVD-R CD-R/RW drive, 2000kB Cache, UDMA(33)
Uniform CD-ROM driver Revision: 3.20
Linux video capture interface: v2.00

...


Lukewarm IQ detected in hotplug locking
BUG: warning at kernel/cpu.c:43/lock_cpu_hotplug() (Not tainted)

Call Trace:
[<ffffffff8026e7fd>] show_trace+0xae/0x30e
[<ffffffff8026ea72>] dump_stack+0x15/0x17
[<ffffffff802ac3d2>] lock_cpu_hotplug+0x60/0x85
[<ffffffff802a0708>] __create_workqueue+0x66/0x14e
[<ffffffff885ba3b5>] :cpufreq_ondemand:cpufreq_governor_dbs+0xab/0x304
[<ffffffff80410532>] __cpufreq_governor+0x75/0x107
[<ffffffff80410739>] __cpufreq_set_policy+0x175/0x1e7
[<ffffffff804109aa>] store_scaling_governor+0x15e/0x19c
[<ffffffff80275654>] store+0x4c/0x66
[<ffffffff8030af43>] sysfs_write_file+0xd1/0x103
[<ffffffff80217278>] vfs_write+0xcf/0x175
[<ffffffff80217b60>] sys_write+0x47/0x70
[<ffffffff8026048e>] system_call+0x7e/0x83
DWARF2 unwinder stuck at system_call+0x7e/0x83
Leftover inexact backtrace:

ip_tables: (C) 2000-2006 Netfilter Core Team
Netfilter messages via NETLINK v0.30.

------------------------

The third is that httpd-2.2.2-7 segfaults.
Downgrading to FC5 last update (httpd-2.2.2-1.2)
doesn't help.

Best regards,
Zoltán Böszörményi


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